Human movement is carried out by the musculoskeletal system. There are essential structures like bones, muscles, and ligaments in the human body that work to produce a human movement. A lever is a firm bar that revolves around a fixed point or fulcrum. The lever has three parts, fulcrum (axis), force (effort), and resistance (load). The human body parts function similar to the parts of the lever. The axis of the lever represents the joints in the human body. The lever arm represents the bones. The force of the lever is similar to the region where the muscle is attached. The resistance of the lever is the force exerted to overcome the weight. Effort arm is the portion of the lever that starts from the fulcrum to the point of effort, whereas resistance arm starts from the fulcrum to the point of resistance.

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Answer 1

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Chapter 9.2, Problem 8BYGO

Summary Introduction

Introduction:

Human movement is carried out by the musculoskeletal system. There are essential structures like bones, muscles, and ligaments in the human body that work to produce a human movement.

A lever is a firm bar that revolves around a fixed point or fulcrum. The lever has three parts, fulcrum (axis), force (effort), and resistance (load).

The human body parts function similar to the parts of the lever. The axis of the lever represents the joints in the human body. The lever arm represents the bones. The force of the lever is similar to the region where the muscle is attached. The resistance of the lever is the force exerted to overcome the weight. Effort arm is the portion of the lever that starts from the fulcrum to the point of effort, whereas resistance arm starts from the fulcrum to the point of resistance.

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Give an anatomical example of each class of levers andexplain why each example belongs in that class

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Using the terms fulcrum, lever, and force, explain howcontraction of a muscle results in movement.

Answer 2

Question

Chapter 9.2, Problem 8BYGO

Summary Introduction

Introduction:

Human movement is carried out by the musculoskeletal system. There are essential structures like bones, muscles, and ligaments in the human body that work to produce a human movement.

A lever is a firm bar that revolves around a fixed point or fulcrum. The lever has three parts, fulcrum (axis), force (effort), and resistance (load).

The human body parts function similar to the parts of the lever. The axis of the lever represents the joints in the human body. The lever arm represents the bones. The force of the lever is similar to the region where the muscle is attached. The resistance of the lever is the force exerted to overcome the weight. Effort arm is the portion of the lever that starts from the fulcrum to the point of effort, whereas resistance arm starts from the fulcrum to the point of resistance.

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Answer 3

Question

Chapter 9.2, Problem 8BYGO

Summary Introduction

Introduction:

Human movement is carried out by the musculoskeletal system. There are essential structures like bones, muscles, and ligaments in the human body that work to produce a human movement.

A lever is a firm bar that revolves around a fixed point or fulcrum. The lever has three parts, fulcrum (axis), force (effort), and resistance (load).

The human body parts function similar to the parts of the lever. The axis of the lever represents the joints in the human body. The lever arm represents the bones. The force of the lever is similar to the region where the muscle is attached. The resistance of the lever is the force exerted to overcome the weight. Effort arm is the portion of the lever that starts from the fulcrum to the point of effort, whereas resistance arm starts from the fulcrum to the point of resistance.

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Answer 4

Question

Chapter 9.2, Problem 8BYGO

Summary Introduction

Introduction:

Human movement is carried out by the musculoskeletal system. There are essential structures like bones, muscles, and ligaments in the human body that work to produce a human movement.

A lever is a firm bar that revolves around a fixed point or fulcrum. The lever has three parts, fulcrum (axis), force (effort), and resistance (load).

The human body parts function similar to the parts of the lever. The axis of the lever represents the joints in the human body. The lever arm represents the bones. The force of the lever is similar to the region where the muscle is attached. The resistance of the lever is the force exerted to overcome the weight. Effort arm is the portion of the lever that starts from the fulcrum to the point of effort, whereas resistance arm starts from the fulcrum to the point of resistance.

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Answer 5

Chapter 9.2, Problem 8BYGO

Summary Introduction

Introduction:

Human movement is carried out by the musculoskeletal system. There are essential structures like bones, muscles, and ligaments in the human body that work to produce a human movement.

A lever is a firm bar that revolves around a fixed point or fulcrum. The lever has three parts, fulcrum (axis), force (effort), and resistance (load).

The human body parts function similar to the parts of the lever. The axis of the lever represents the joints in the human body. The lever arm represents the bones. The force of the lever is similar to the region where the muscle is attached. The resistance of the lever is the force exerted to overcome the weight. Effort arm is the portion of the lever that starts from the fulcrum to the point of effort, whereas resistance arm starts from the fulcrum to the point of resistance.

Answer 6

Chapter 9.2, Problem 8BYGO

Summary Introduction

Introduction:

Human movement is carried out by the musculoskeletal system. There are essential structures like bones, muscles, and ligaments in the human body that work to produce a human movement.

A lever is a firm bar that revolves around a fixed point or fulcrum. The lever has three parts, fulcrum (axis), force (effort), and resistance (load).

The human body parts function similar to the parts of the lever. The axis of the lever represents the joints in the human body. The lever arm represents the bones. The force of the lever is similar to the region where the muscle is attached. The resistance of the lever is the force exerted to overcome the weight. Effort arm is the portion of the lever that starts from the fulcrum to the point of effort, whereas resistance arm starts from the fulcrum to the point of resistance.

Answer 7

Chapter 9.2, Problem 8BYGO

Summary Introduction

Introduction:

Human movement is carried out by the musculoskeletal system. There are essential structures like bones, muscles, and ligaments in the human body that work to produce a human movement.

A lever is a firm bar that revolves around a fixed point or fulcrum. The lever has three parts, fulcrum (axis), force (effort), and resistance (load).

The human body parts function similar to the parts of the lever. The axis of the lever represents the joints in the human body. The lever arm represents the bones. The force of the lever is similar to the region where the muscle is attached. The resistance of the lever is the force exerted to overcome the weight. Effort arm is the portion of the lever that starts from the fulcrum to the point of effort, whereas resistance arm starts from the fulcrum to the point of resistance.

Answer 8

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Answer 9

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Answer 10

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Answer 11

Ch. 9.1 - The fundamental definition of joint (articulation)...Ch. 9.1 - Relationships and differences between the sciences...Ch. 9.1 - Prob. 3AYLO Ch. 9.1 - Prob. 4AYLO Ch. 9.1 - Characteristics and examples of bony joints...Ch. 9.1 - Characteristics of fibrous joints (synarthroses)...Ch. 9.1 - Characteristics of cartilaginous joints...Ch. 9.2 - The definition and anatomical features of a...Ch. 9.2 - General anatomy of tendons, ligaments, bursae, and...Ch. 9.2 - Three essential components of a lever

Solution Summary: The author explains how levers are classified based on which becomes the middle component among the three. The first-class lever occurs very rarely in the human body.

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